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Irregular sleep and all-cause mortality: A large prospective cohort study by Chie Omichi; Teruhide Koyama; Hiroshi Kadotani; Etsuko Ozaki; Satomi Tomida; Tamami Yoshida; Jun Otonari; Hiroaki Ikezaki; Megumi Hara; Keitaro Tanaka; Takashi Tamura; Mako Nagayoshi; Rieko Okada; Yoko Kubo; Isao Oze; Keitaro Matsuo; Yohko Nakamura; Miho Kusakabe; Rie Ibusuki; Kenichi Shibuya; Sadao Suzuki; Miki Watanabe; Kiyonori Kuriki; Naoyuki Takashima; Aya Kadota; Sakurako Katsuura-Kamano; Kokichi Arisawa; Kenji Takeuchi; Kenji Wakai is a Psychology article available to read on EtoBox.

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## Objectives: Previous studies using objective parameters have shown that irregular sleep is associated with the disease incidence, progression, or mortality. this study aimed to determine the association between subjective sleep duration and sleep regularity, with mortality in a large population. ## Methods: Participants were from the japan multi-institutional collaborative cohort study. we obtained information from each participant on sleep duration, sleep regularity, and demographics and overall lifestyle using self-administered questionnaires. we defined sleep regularity according to participants' subjective assessment of sleep/wake time regularity. participants (n = 81,382, mean age: 58.1 ± 9.1years, males: 44.2%) were classified into 6 groups according to sleep duration and sleep regularity. hazard ratios (hr) for time-to-event of death were calculated using the cox proportional hazards model. ## Results: The mean follow-up period was 9.1 years and the mean sleep duration was 6.6 h/day. irregular sleep significantly increased the risk of all-cause mortality in all models compared with regular sleep (hr 1.30, 95% confidence interval; ci, 1.18-1.44), regardless of sleep durati

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Author

Chie Omichi; Teruhide Koyama; Hiroshi Kadotani; Etsuko Ozaki; Satomi Tomida; Tamami Yoshida; Jun Otonari; Hiroaki Ikezaki; Megumi Hara; Keitaro Tanaka; Takashi Tamura; Mako Nagayoshi; Rieko Okada; Yoko Kubo; Isao Oze; Keitaro Matsuo; Yohko Nakamura; Miho Kusakabe; Rie Ibusuki; Kenichi Shibuya; Sadao Suzuki; Miki Watanabe; Kiyonori Kuriki; Naoyuki Takashima; Aya Kadota; Sakurako Katsuura-Kamano; Kokichi Arisawa; Kenji Takeuchi; Kenji Wakai

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Psychology (Social Sciences)